Epidemiol Health.
2023;45(1):e2023041. 10.4178/epih.e2023041.
Association of group-level segregation with cardiovascular health in older adults: an analysis of data from the Korean Social Life, Health, and Aging Project
- Affiliations
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- 1Center for Happiness Studies, Seoul National University, Seoul, Korea
- 2Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
- 3Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- 4Department of Sociology, Yonsei University, Seoul, Korea
- KMID: 2542469
- DOI: http://doi.org/10.4178/epih.e2023041
Abstract
OBJECTIVES
The adverse health effects of individual-level social isolation (e.g., perceived loneliness) have been well documented in older adults. However, little is known about the impact of collective-level social isolation on health outcomes. We sought to examine the association of group-level segregation with cardiovascular health (CVH) in older adults.
METHODS
From the prospective Korean Social Life, Health, and Aging Project database, we identified 528 community-dwelling older adults who were aged ≥60 years or were married to those aged ≥60 years. Participants who belonged to smaller social groups separate from the major social group were defined as group-level-segregated. The CVH score was calculated as the number of ideal non-dietary CVH metrics (0-6), as modified from the American Heart Association’s Life’s Simple 7. Using ordinal logistic regression models, we assessed cross-sectional and longitudinal associations between group-level segregation and CVH.
RESULTS
Of the 528 participants (mean age, 71.7 years; 60.0% female), 108 (20.5%) were segregated at baseline. In the crosssectional analysis, group-level segregation was significantly associated with lower odds of having a higher CVH score at baseline after adjusting for socio-demographic factors and cognitive function (odds ratio [OR], 0.64; 95% confidence interval [CI], 0.43 to 0.95). Among 274 participants who completed an 8-year follow-up, group-level segregation at baseline was marginally associated with lower odds of having a higher CVH score at 8 years (OR, 0.49; 95% CI, 0.24 to 1.02).
CONCLUSIONS
Group-level segregation was associated with worse CVH. These findings imply that the social network structure of a community may influence its members’ health status.
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